leaking front differential (1 Viewer)

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Jul 31, 2008
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Iwakuni Japan
So in Feb I broke the front differential. I noticed it while I was washing my truck after some wheeling. It got it fixed, actual replaced the whole thing. Well I noticed it is leaking from the same spot again. I took it to the shop I had the front diff work done the last time because I am hoping the work will be covered under their warranty. The same mechanic looked at it and said that the coil over on that side may be putting too much pressure on the CV axle and causing the seal to break. He said he thought this because when he took the driver side suspension apart it moved like it had some type of torqueing pressure on it. They are hesitant to put a new CV axle in and see the same results, I don’t want to have to get another front diff, they are expensive. He says maybe if I get it measured and see if the front is the same height on both sides I will be ok, but people get OME with the trim packer and they don’t have problems, why would I get a problem when I adjusted my Walker Evans to be level with the back and compensate for the driver’s lean. Has anyone had this issue? Does anyone have an idea as to how to fix it?
 
So in Feb I broke the front differential. I noticed it while I was washing my truck after some wheeling. It got it fixed, actual replaced the whole thing. Well I noticed it is leaking from the same spot again. I took it to the shop I had the front diff work done the last time because I am hoping the work will be covered under their warranty. The same mechanic looked at it and said that the coil over on that side may be putting too much pressure on the CV axle and causing the seal to break. He said he thought this because when he took the driver side suspension apart it moved like it had some type of torqueing pressure on it. They are hesitant to put a new CV axle in and see the same results, I don’t want to have to get another front diff, they are expensive. He says maybe if I get it measured and see if the front is the same height on both sides I will be ok, but people get OME with the trim packer and they don’t have problems, why would I get a problem when I adjusted my Walker Evans to be level with the back and compensate for the driver’s lean. Has anyone had this issue? Does anyone have an idea as to how to fix it?


Have you searched this problem on the "blue forum"? Sounds like it could be a common problem.
 
I posted a thread there. The Toyota guy who the mechanic called today said the only FJs he has heard about this have all been lifted.
 
Have you already replaced your c/v axle?....if yes, was it new or rebuilt?...could make a difference.
 
I had them replaced before the diff broke, unsure if they put new ones in when they fixed the diff in Feb, but I assume they would have. Of course ASSuME-ing stuff is never good.
 

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